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Updated: May 30, 2026
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Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
[Endovascular aneurysms repair: 100 consecutive cases outcome analysis]
P G Dias1, S M Sampaio, A Silva
1Serviço de Angiologia e Cirurgia Vascular do Hospital de São João e Centro de Bioestatística e Informática Médica, Faculdade de Medicina da Universidade do Porto; Centro de Investigação em Tecnologias e Sistemas de Informação em Saúde (CINTESIS).
Summary
Endovascular aneurysm repair (EVAR) shows no early mortality and good perioperative outcomes for abdominal aortic aneurysms. This study found a durable benefit with low aneurysm-related mortality and favorable long-term survival.
Area of Science:
- Vascular Surgery
- Medical Devices
- Clinical Outcomes Research
Background:
- Endovascular Aneurysm Repair (EVAR) is a minimally invasive alternative to open surgery for Abdominal Aortic Aneurysms (AAAs).
- Evaluating the long-term effectiveness and safety of EVAR in a regional center is crucial for clinical practice guidelines.
Purpose of the Study:
- To assess the effectiveness and clinical outcomes of elective EVAR for non-ruptured infra-renal AAAs.
- To analyze perioperative complications, reintervention rates, and long-term mortality associated with EVAR.
Main Methods:
- Retrospective review of medical records for 100 consecutive patients undergoing elective EVAR.
- Outcomes assessed included all-cause and aneurysm-related mortality, perioperative complications, and reinterventions.
- Patient demographics and procedure characteristics were analyzed.
Main Results:
- No perioperative deaths were observed.
- The 30-day reintervention rate was 6.1%, with 87.9% of patients remaining free from reintervention at follow-up.
- At 8 years, all-cause mortality was 28.5% and aneurysm-related mortality was 1.3%.
Conclusions:
- EVAR demonstrated no early mortality and favorable perioperative outcomes, including low complication and short hospital stay rates.
- The study observed a lower-than-expected reintervention rate.
- EVAR provides durable benefits with very low aneurysm-related mortality, supporting its use for large AAAs.
